International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 11 Issue: 07 | July 2024
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p-ISSN: 2395-0072
Battery Thermal Management System for Lithium-ion Cells by using thermoelectric module Sunil Magan More*1, Dr. Brajesh Mohan Gupta*2 *1Phd Scholar, Department of Electrical and Electronics Engineering, Sri Satya Sai University of Technology and
Medical Sciences, Sehore MP, India.
*2Professor, Department of Electrical and Electronics Engineering, Sri Satya Sai University of Technology and
Medical Sciences, Sehore MP, India. ---------------------------------------------------------------------***--------------------------------------------------------------------self-heat them prior to operating at cold temperatures. (5) Abstract - Battery thermal management system (BTMS)
Traditional air cooling is not effective for battery thermal management. Direct immersion in a single-phase, nonconductive cooling fluid is the most efficient and reliable way to cool batteries.(6) The scheme uses active thermal controls to cool or heat battery cells based on the power requirements and temperature variation. The scheme can significantly improve the efficiency and reliability of the BMS. (7) To keep lithium-ion batteries (LIBs) operating within their safe temperature range and ensure their performance and safety, researchers have developed various battery thermal management systems (BTMSs). The most common BTMSs are air cooling, liquid cooling, and phase change material (PCM) cooling. (8) The development of an advanced integrated BMS is challenging due to the need for accurate physics-based models, effective charging and cell balancing algorithms, and thermal models. (9) A model of thermal dynamics in battery packs was developed to improve safety and reduce weight and cost. The model is a simplification of the full CFD/FEM model, but it is still accurate enough for real-time implementation. (10) Early models of lithium batteries were simplified to fit the computational power available at the time. Today's computers can simulate the entire cell sandwich, so there is no need for these simplifications. This paper presents the full-cell-sandwich model in its most developed form, and discusses its applications, such as interpreting experimental data and optimizing geometric parameters. (11) Lithium-ion batteries are widely used in consumer electronics due to their high energy density, high power density, long service life, and environmental friendliness. However, lithium-ion batteries for vehicles have high capacity and large serialparallel numbers, which pose challenges in terms of safety, durability, uniformity, and cost. To ensure the safe and reliable operation of lithium-ion batteries in vehicles, a battery management system (BMS) is needed to control and manage the batteries. (12)Thermal management systems are essential for battery packs in electric vehicles to prevent overheating and safety hazards. This paper reviews the three main types of thermal management strategies: air management, fluid management, and phase-change materials. Parallel air management is the most efficient and cost-effective, while liquid management is more complex and expensive. Phase-change materials also guarantee excellent
Control and maintain the temperature of a battery cell at Different weather conditions. The range can be decided by BTMS. Thermal management is very important in the EV automobile sector, for the safety & performance of the vehicle. Battery performance decreases with increase in heat inside the battery cell whenever load on battery increases. Even when atmospheric temperature changes battery temperature increases which may cause thermal runaway in the battery, also in different cold conditions battery ability to deliver power effectively will reduce. Various methods use for BTMS such as Active, Passive, Phase change material (PCM), thermal insulation, thermal monitoring & control system. During this paper the thermos-electric module is used to control the temperature in various environmental conditions. Thermo electric coder is a solid state device that utilizes the peltier effect to transfer heat when an electric current flows through it. The battery temperature is controlled in the range of 10°C to 30°C. Which is very necessary for to improve the battery efficiency in the electric vehicle
Key Words: BTMS- Battery Thermal Management system, TEC – Thermoelectric coder, SoC- State of Charge, SoH- State of Health, BTM- Battery thermal Model.
1. INTRODUCTION Liquids have higher heat capacity than air, so they can absorb more heat per unit volume. This makes liquid cooling systems more effective at removing heat from batteries. Liquid Cooling systems can help to prevent thermal runaway and extend battery lifespan. (1) A study found that PCM/copper foam can be used to cool battery modules and maintain a uniform temperature. The most efficient arrangement was found to be a staggered arrangement with a 50% fill factor. (2) Battery state estimation methods are used to estimate the internal state of a battery. This is important for operating a battery-powered system effectively, sustainably, and safely. (3) A flexible approach to obtain reliable electrical and thermal design of LIB systems for automotive applications is proposed. The approach is suitable for identifying promising concepts and general design recommendations. (4) It is important to keep lithiumion batteries at temperatures below 50°C and rapidly heat or
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